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BESTER BDM-2 MIMO 4G/LTE ANTENNA, 15-17 DB

118 posts in this topic

Salem
d'avoir répondu à mon post, c'est que l'on peut avoir un circuit explicatif qui me permettra d'implémenter mon antenne avec une impédance coaxiale de 75 ohms.
Merci

Edited by Samir

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Samir,, wait until I do a simulation for the 75 Ohm coaxial cable..!!!

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These are the dimensions for the 2.4GHz Bester antenna

screenshot_660.jpg

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Salem thanks for this 2.4ghz wifi antenna circuit i will make and then test

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Salem, let me ask you this question about the design and modification of this 4G LTE 1800MHz antenna model, the diagram is attached, Question 1; do we have new model for 75 ohm coaxial cable

Yours sincerely

4G LTE 1800 Mhz.png

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 Samir, only English is spoken here ... !!!

,,,for 75 ohm cable the only difference is h1 and h2...!!!

screenshot_669.jpg

screenshot_670.jpg

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Admin, thanks for reminding me about using the English language on the forum. for the antenna, I will carry the corrections on my antenna at the level of the reflector and the vibrator Sincerely yours

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On 4/2/2022 at 5:27 AM, Admin said:

 Samir, only English is spoken here ... !!!

,,,for 75 ohm cable the only difference is h1 and h2...!!!

screenshot_669.jpg

screenshot_670.jpg

Hello Admin, 

I would like use this antenna for 4G LTE (1800 Mhz) witha 75ohm cable. If I want to add the 2nd feed, should I put it at 120° as always? 

Thank you 

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On 18/12/2020 at 8:01 AM, Admin said:

,,,miloudsatdz ,,, these are the optimal dimensions....

screenshot_2428.jpg

screenshot_2429.jpg

Hello Admin, 

Can I use this antenna with a parabolic dish for 4G LTE (1800Mhz)? Is it the best solution or do you have other improvements? 

Thank you

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Of course...!!!

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1 minute ago, Admin said:

Of course...!!!

If I want put the 2nd feed. It should be placed at 120°. Correct?

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,,, such as dual band,,,??, maybe, cross polarization...!!!

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hi admin can this use a 75 ohm cable or do you have to change the distance

Screenshot_2022-08-03-10-22-31-36.png

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,,, for the impedance of 75 Ohm, the distance of 7 mm must be modified...!!!

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I have 75 ohm material can you give a schematic? let's be clear thanks in advance.. healthy long life for admin

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,,,okay, I will try...for the frequency of 1800 MHz...??/

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Dedewe,how would that be...

screenshot_1386.jpg

screenshot_1387.jpg

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and I will try to apply it in the real world thank you admin and God who will repay your kindness

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How about mimo system. The. Decoupling. Of. 2 ports 120 degree.  Is it. Good. ?  I want   to  see the s1s2. !!? Thanks by advance jomy 

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,,,it is possible, but the isolation between the ports is not good..!!

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On 12/18/2020 at 10:31 AM, Admin said:

,,,miloudsatdz ,,, these are the optimal dimensions....

screenshot_2428.jpg

screenshot_2429.jpg

Can I build this antenna with galvanized steel sheet? Does it work or it Must  be double sided pcb?

Edited by Noob anten
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